1 /* 2 * Copyright (c) 2021-2022, ARM Limited and Contributors. All rights reserved. 3 * Copyright (c) 2018-2022, Xilinx, Inc. All rights reserved. 4 * Copyright (C) 2022, Advanced Micro Devices, Inc. All rights reserved. 5 * 6 * SPDX-License-Identifier: BSD-3-Clause 7 */ 8 9 #include <common/debug.h> 10 #include <common/runtime_svc.h> 11 #include <drivers/generic_delay_timer.h> 12 #include <lib/mmio.h> 13 #include <lib/xlat_tables/xlat_tables_v2.h> 14 #include <plat/common/platform.h> 15 #include <plat_ipi.h> 16 17 #include <plat_private.h> 18 #include <versal_net_def.h> 19 20 uint32_t platform_id, platform_version; 21 22 /* 23 * Table of regions to map using the MMU. 24 * This doesn't include TZRAM as the 'mem_layout' argument passed to 25 * configure_mmu_elx() will give the available subset of that, 26 */ 27 const mmap_region_t plat_versal_net_mmap[] = { 28 MAP_REGION_FLAT(DEVICE0_BASE, DEVICE0_SIZE, MT_DEVICE | MT_RW | MT_SECURE), 29 MAP_REGION_FLAT(DEVICE1_BASE, DEVICE1_SIZE, MT_DEVICE | MT_RW | MT_SECURE), 30 MAP_REGION_FLAT(DEVICE2_BASE, DEVICE2_SIZE, MT_DEVICE | MT_RW | MT_SECURE), 31 MAP_REGION_FLAT(CRF_BASE, CRF_SIZE, MT_DEVICE | MT_RW | MT_SECURE), 32 MAP_REGION_FLAT(IPI_BASE, IPI_SIZE, MT_DEVICE | MT_RW | MT_SECURE), 33 { 0 } 34 }; 35 36 const mmap_region_t *plat_versal_net_get_mmap(void) 37 { 38 return plat_versal_net_mmap; 39 } 40 41 /* For saving cpu clock for certain platform */ 42 uint32_t cpu_clock; 43 44 char *board_name_decode(void) 45 { 46 switch (platform_id) { 47 case VERSAL_NET_SPP: 48 return "IPP"; 49 case VERSAL_NET_EMU: 50 return "EMU"; 51 case VERSAL_NET_SILICON: 52 return "Silicon"; 53 case VERSAL_NET_QEMU: 54 return "QEMU"; 55 default: 56 return "Unknown"; 57 } 58 } 59 60 void board_detection(void) 61 { 62 uint32_t version; 63 64 version = mmio_read_32(PMC_TAP_VERSION); 65 platform_id = FIELD_GET(PLATFORM_MASK, version); 66 platform_version = FIELD_GET(PLATFORM_VERSION_MASK, version); 67 68 if ((platform_id == VERSAL_NET_SPP) || 69 (platform_id == VERSAL_NET_EMU) || 70 (platform_id == VERSAL_NET_QEMU)) { 71 /* 72 * 9 is diff for 73 * 0 means 0.9 version 74 * 1 means 1.0 version 75 * 2 means 1.1 version 76 * etc, 77 */ 78 platform_version += 9U; 79 } 80 81 /* Make sure that console is setup to see this message */ 82 VERBOSE("Platform id: %d version: %d.%d\n", platform_id, 83 platform_version / 10U, platform_version % 10U); 84 } 85 86 void versal_net_config_setup(void) 87 { 88 uint32_t val; 89 uintptr_t crl_base, iou_scntrs_base, psx_base; 90 91 crl_base = VERSAL_NET_CRL; 92 iou_scntrs_base = VERSAL_NET_IOU_SCNTRS; 93 psx_base = PSX_CRF; 94 95 /* Reset for system timestamp generator in FPX */ 96 mmio_write_32(psx_base + PSX_CRF_RST_TIMESTAMP_OFFSET, 0); 97 98 /* Global timer init - Program time stamp reference clk */ 99 val = mmio_read_32(crl_base + VERSAL_NET_CRL_TIMESTAMP_REF_CTRL_OFFSET); 100 val |= VERSAL_NET_CRL_APB_TIMESTAMP_REF_CTRL_CLKACT_BIT; 101 mmio_write_32(crl_base + VERSAL_NET_CRL_TIMESTAMP_REF_CTRL_OFFSET, val); 102 103 /* Clear reset of timestamp reg */ 104 mmio_write_32(crl_base + VERSAL_NET_CRL_RST_TIMESTAMP_OFFSET, 0); 105 106 /* Program freq register in System counter and enable system counter. */ 107 mmio_write_32(iou_scntrs_base + VERSAL_NET_IOU_SCNTRS_BASE_FREQ_OFFSET, 108 cpu_clock); 109 mmio_write_32(iou_scntrs_base + VERSAL_NET_IOU_SCNTRS_COUNTER_CONTROL_REG_OFFSET, 110 VERSAL_NET_IOU_SCNTRS_CONTROL_EN); 111 112 generic_delay_timer_init(); 113 114 #if (TFA_NO_PM == 0) 115 /* Configure IPI data for versal_net */ 116 versal_net_ipi_config_table_init(); 117 #endif 118 } 119 120 uint32_t plat_get_syscnt_freq2(void) 121 { 122 return cpu_clock; 123 } 124